IBM IC35L036UWDY10 Hard Drive Specifications - Page 29
Mechanical positioning, 5.2.1 Average seek time including settling, 5.2.2 Full stroke seek time - model 0
UPC - 000004119524
View all IBM IC35L036UWDY10 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 29 highlights
4.5.2 Mechanical positioning 4.5.2.1 Average seek time (including settling) Command Type Read Write 146 GB model all other models 146 GB model all other models Typical (ms) 4.7 4.7 5.9 5.3 Max (ms) 5.9 5.7 6.9 6.9 Figure 7. Mechanical positioning performance "Typical" and "Max" are given throughout the performance specification by: Typical Average of the drive population tested at nominal environmental and voltage conditions. Max Maximum value measured on any one drive over the full range of the environmental and voltage conditions. (See Section 7.3, "Environment" on page 30 and Section 7.5, "DC power requirements" on page 32 for ranges.) The seek time is measured from the start of the actuator's motion to the start of a reliable read or write operation. "Reliable read or write" implies that error correction or recovery is not used to correct arrival problems. The average seek time is measured as the weighted average of all possible seek combinations. Weighted average = max Sum (max+1-n) (Tn.in+Tn.out) n=1 (max+1) (max) Where max = Maximum seek length n = Seek length (1 to max) Tn.in = Inward measured seek time for an n track seek Tn.out = Outward measured seek time for an n track seek 4.5.2.2 Full stroke seek time Function Read Write Typical (ms) 10.5 11.5 Maximum (ms) 11.5 12.5 Figure 8. Full stroke seek time Full stroke seek is measured as the average of 1000 full stroke seeks with a random head switch from both directions (inward and outward). Ultrastar 146Z10 hard disk drive specifications 13